Safe I/O

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Real-time diagnostics without software


The invention relates to a diagnostic device for checking the I/O logic or cell of a microchip for errors (SEU) and defects. The error detection is carried out permanently by innovative integrated digital architectures and monitors digital I/O units  in real time, thus eliminating the need for time-consuming and error-prone software solutions. The patent-pending solution can be integrated into any digital chip design, regardless of the technology.

Features / Advantages

  • Real-time error detection

  • Hardware solution without diagnostic software routines

  • Real-time diagnostics even for communication signals (SPI, I²C, UART, etc.) without interrupting or influencing communication

  • Monitor digital I/O without software intervention

  • Use multiplex-capable I/O in safety-relevant applications

  • Self-diagnostic logic, minimal space consumption, easily scalable for 2:1 / 3:1 / N:1 multiplexing of digital I/Os

  • Technology-independent implementation directly in VHDL / Verilog

Areas of application

  • Digital microchips / microcontrollers
  • Safety-related microchips  in accordance with ISO 26262 / IEC 61508
  • Improve FPGA solutions (including existing ones)
  • Save chip area and multiplex more functions

Contact us

via e-mail to Mrs. Hentschel